JZ_GPIO_INTC
writereg(reg + JZ_GPIO_INTC, mask); /* use as gpio */
writereg(reg + JZ_GPIO_INTC, mask); /* use as gpio */
writereg(reg + JZ_GPIO_INTC, mask); /* use as gpio */
writereg(reg + JZ_GPIO_INTC, mask); /* use as gpio */
writereg(reg + JZ_GPIO_INTC, mask); /* use as gpio */
writereg(reg + JZ_GPIO_INTC, mask); /* not an interrupt */